Fill in the blanks in the following sentences with appropriate prepositions 在下列句子的空格中填入适当的前置词。
2.
There is there are , prepositions of place as answers to questions . there are too many people 那里有（单数）那里有（复数） ，把方位的前置词作为问题的答案
3.
And also in this article , the chinese word automatic segmentation is designed which uses the melio - rative markoff statistics process . the chinese word bank is built up by matching the unimportant - word base , the single - word base and the first - word base . the feature vector is drawn out through assessing the weight of every word , enters into the regular band as regulations and becomes a criterion for text filtering 本文设计了中文分词处理算法，此算法通过对停用词库、单字词库与前置词库进行匹配，并通过对分词进行切分，利用改造型马尔可夫n元语言模型处理分词中出现的歧义词方法，建立了中文分词词库，然后对分词进行权重评价从而提取特征向量，并作为规则归入规则库里，作为文本过滤的标准，最后提出防止敏感信息通过的一些过滤策略。
